.eslintrc.json

{
  "env": {
    "browser": true                     // Allow to use browser defined variable (not console, alert etc.)
  },
  "parserOptions": {
    "ecmaVersion": 5
  },
  "globals": {
    "pzpr": "readonly",
    "ui": "readonly"
  },
  "extends": "eslint:recommended",      // Implement recommended rules
  "rules": {
    "curly": ["error", "all"],          // Error for no curly brancket in loop or conditions
    "no-unused-vars":                   // Error for unused variables, not detect arguments
        ["error", {"args": "none"}],
    "no-undef": "error",                // Error for unused variable (that will become global variable)
    "new-cap": "error",                 // Error for lowercase first letter or constructor call as function
    "eqeqeq": ["error", "always"],      // Error for ==, != to compare
    "no-use-before-define":             // Error for using variable before definition
        ["error", {"functions":false, "classes":false}],
    "comma-dangle": ["error", "never"], // Error for trailing comma
    "no-redeclare": "error",            // Error for redefine variable
    //"block-scoped-var": "warn",       // Warn var declaration inside block scope
    "no-empty": "off",                  // Allow empty block statements
    "no-useless-escape": "off",         // Allow unnessesary escape charactors
    "no-extra-boolean-cast": "off",     // Allow to use boolean cast for boolean value
    "dot-notation": "off",              // Allow object access via obj["name"]
    "no-loop-func": "off"               // Allow function definition in loop
  }
}